/* Document Upload Modal Styling */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background-color: #fff;
  margin: 5% auto;
  padding: 0;
  border: none;
  width: 90%;
  max-width: 600px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease;
  overflow: hidden;
}

@keyframes slideIn {
  from { transform: translateY(-50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  padding: 20px 25px;
  background-color: #f8f9fa;
  border-bottom: 1px solid #e9ecef;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.5rem;
  color: #212529;
  font-weight: 600;
}

.modal-body {
  padding: 25px;
}

.close {
  color: #aaa;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s ease;
}

.close:hover {
  color: #555;
}

/* Form Styling */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #495057;
}

.form-group input[type="text"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ced4da;
  border-radius: 4px;
  font-size: 16px;
  transition: border-color 0.2s ease;
}

.form-group input[type="text"]:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #80bdff;
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

/* File Input Styling */
.file-input-container {
  display: flex;
  flex-direction: column;
}

.file-name-display {
  margin-top: 8px;
  padding: 8px 12px;
  background-color: #f8f9fa;
  border: 1px solid #ced4da;
  border-radius: 4px;
  font-size: 14px;
  color: #6c757d;
}

/* Button Styling */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 30px;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: #007bff;
  color: white;
}

.btn-primary:hover {
  background-color: #0069d9;
}

.btn-secondary {
  background-color: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background-color: #5a6268;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* Error Message Styling */
.error-message {
  padding: 10px 15px;
  background-color: #f8d7da;
  color: #721c24;
  border-radius: 4px;
  margin-top: 15px;
  font-size: 14px;
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s linear infinite;
  margin-right: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}